Colorimetric Sensors: Methods and Applications

Abstract

Colorimetric sensors have attracted considerable attention in many sensing applications because of their specificity, high sensitivity, cost-effectiveness, ease of use, rapid analysis, simplicity of operation, and clear visibility to the naked eye [...]

Zein/MnO2 Nanosheet Composites Integrated with a Smartphone for Colorimetric Sensors for On-Site Detection of Adulterants in Milk

“…The transduction mechanism of a colorimetric sensor depends on the change in light absorption of a chemochromic material . Colorimetric sensors offer numerous advantages, including specificity, high sensitivity, cost effectiveness, ease of use, rapid analysis, straightforward operation, and clear visibility to the naked eye. , These sensors are typically composed of materials that undergo changes in their absorption band when exposed to the analyte of interest. In the past years, two-dimensional (2D) nanomaterials have attracted much attention due to their diverse properties, such as appropriate atomic-level thickness, high light absorption intensity, and large specific surface area, making them suitable for a wide range of applications, including colorimetric sensors. − …”